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Finding the Fourth Proportional to 292,528.31, 403,686.90 and 158,392.31

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Solution

The fourth proportional to 292,528.31, 403,686.90 and 158,392.31 is: 218,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,528.31 : 403,686.90 = 158,392.31 : x
  2. Step 2: Convert to fraction form
    292,528.31/403,686.90 = 158,392.31/x
  3. Step 3: Cross multiply
    292,528.31x = 403,686.90 × 158,392.31
  4. Step 4: Simplify right side
    292,528.31x = 63,940,898,589.30
  5. Step 5: Solve for x
    x = 63,940,898,589.30/292,528.31
  6. Step 6: Final answer
    x = 218,580.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.